Galaxie irrégulière naine, je Zwicky 18

• Contributeur: Science History Images / Alamy Banque D'Images
• ID de l’image: HRJMAP
• Taille du fichier: 39,4 MB (2,3 MB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 3750 x 3674 px | 31,8 x 31,1 cm | 12,5 x 12,2 inches | 300dpi
• Photographe: Photo Researchers

Informations supplémentaires

Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.

NASA/ESA Hubble Space Telescope snapped a view of what may be the youngest galaxy ever seen. This "late bloomer" may not have begun active star formation until about 13 billion years after the Big Bang. Called I Zwicky 18 (below, left), the galaxy may be as young as 500 million years old. This youngster has gone though several sudden bursts of star formation, with the first occurring only about 500 million years ago and the latest only 4 million years ago. This galaxy is typical of the kinds of galaxies that inhabited the early universe. The galaxy is classified as a dwarf irregular galaxy and is much smaller than our Milky Way.

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